Invalid-bed.



T. DODDS.

INVALID BED.

APPLICATION FILED Mums. ma.

1 ,27 6,885 Patented Aug. 27, 1918.

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THOMAS DODDS, OF THESSALON, ONTARIO, CANADA.

INVALID-BED.

Specification of Letters Patent.

Patented Aug. 27, 1918.

Application filed March 25, 1918. Serial No. 224,598.

To all whom, it may concern:

Be it known that I, THoMAs Dooos, a subject of the King of GreatBritain, and resident of Thessalon, in the Province of Ontario, Dominionof Canada, have invented certain new and useful Improvements inInvalid-Beds, of which the following is a specification. I

This invention relates to improvements in invalid beds, and the objectsof the invention are to provide a simple and effective device which mayreadily be applied to any bed and by which a comfortable support may beprovided to hold the occupant of the bed in a raised or sittingposition, and it consists essentially of the improved construction,hereinafter described in detail in the accompanying specification anddrawings.

In the drawings;

Figure 1 is a perspective view of the invention.

Fig. 2 is a detailed end elevation.

In the drawings, like characters of reference indicate correspondingparts in the several figures.

Referring to the drawings, A represents the bed comprising a suitableframe 8 within which the mattress frame C is suitably supported. Therear portion 10 of the mattress frame is hinged to the forward portion,so that it may be elevated as indicated in the drawings and I have inaccordance with the present invention provided means to effect thiselevating. The means which I have devised comprises racks 11 which arepivoted to the section 10 and which are held by straps 12 in engagementwith pinions 13 on a cross shaft 14:, journaled in suitable bearings 15on the frame 13 and adapted to be turned by suitable cranks 16. I

The movable section 10 is adapted to be held in adjusted position bymeans of the pivoted pawl or dog 17 pivoted to a bracket 18 on the frameB and held by a spring 19 in engagement with a ratchet or gear wheel 20.This pawl 17 is adapted to be released from the ratchet wheel 20 bysuitablemeans,

the means I have illustrated comprlsing a v Copies of this patent may beobtained for small crank shaft 21, the crank 22 of which is adapted whenturned to engage and raise the pawl.

The crank 22 is conveniently provided with a U- shaped bail 23 whichextends around the pawl. The crank shaft 21 is journaled in suitablebearings 24 and is adapted to be turned by a crank 25 on the extremitythereof.

It will be seen that the present invention is a very simple buteffective construction, and provides a means by which the mattress of abed may be raised to support the occupant in a sitting or partiallyreclining posi tion. It is verysimple to operate and may 1wi-ih verylittle expense be applied to any As many changes could be made in theabove construction and many apparently widely different embodiments ofmy invention within the scope of the claim, constructed withoutdeparting from the spirit or scope thereof, it is intended that allmatter contained in the accompanying specification. and drawings shallbe interpreted as illustrative and not in a limiting sense.

What I claim as my invention is:

A bed comprising a hinged member, means for raising and lowering saidmember including a ratchet carrying rotatable shaft, and means formaintaining said shaft in adjusted position comprising a bracket carriedby the headboard frame, a pawl supported therefrom engaging saidratchet, a spring also carried by the headboard frame engaging saidpawl, bearings depend ing from the bed frame, a handled shaft journaledtherein having a cranked portion adapted to engage and release the pawlfrom the ratchet, and a U-shaped bail carried by said crank shaftencircling said,

pawl.

In witness whereof I have hereunto set THOMAS DODDS.

Witnesses T. E. WILLIAMS, RUBY KIRBY.

five cents each, by addressing the Commissioner of Patents,

Washington, D. 0.

